Inertia centrifugal force demonstration teaching aid

Abstract

The invention provides an inertia centrifugal force demonstration teaching aid. A motor with an upward transmission shaft is fixed in the middle of the upper part of a stably placed base, a spring isarranged at the outer end of the transmission shaft after the transmission shaft penetrates through a planar disc, and the outer end of the spring is connected with a counterweight ball. During teaching, the transmission shaft of the motor rotates to drive the spring to bear the rotation of the planar disc, the counterweight ball at the outer end can gradually lengthen the spring under the centrifugal action of rotation, and the real scene of the acceleration effect of the inertial centrifugal force can be demonstrated through the telescopic change of the spring.

Description

technical field [0001] The invention relates to a teaching aid, in particular to a teaching aid for demonstrating inertial centrifugal force. Background technique [0002] In the teaching of science and physics in primary and secondary schools, there is a lot of knowledge about inertia and centrifugal force, especially the gradual strengthening of the centrifugal force must lead to an increase in inertia. Teachers can only explain this kind of theoretical knowledge orally and cannot make students more aware of it through demonstrations. Understand that, for this reason, demonstration teaching aids that increase the inertial effect through the strengthening of centrifugal force are extremely important to primary and secondary school teaching. Contents of the invention [0003] The invention provides an inertial centrifugal force demonstration teaching aid, which can intuitively demonstrate the process of inertial change caused by centrifugal force, and is very suitable for ...

AI Technical Summary

Problems solved by technology

[0005] The present invention has the following advantages and effects: the demonstration teaching aid thus constituted, when used in teaching, can drive the spring with the outer end connected to the weight ball to rotate through the rotation of the motor drive shaft, so that it can be pulled gradually with the rotating speed under the action of centrifugal force The long spring can demonstrate the different phenomena of centrifugal force and inertial changes, which solves the problem of lack of teaching aids in explaining relevant knowledge and the inability to intuitively understand the changes, and is beneficial for students to speed up their comprehension ability when learning relevant knowledge

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